Past trouble

Carry out diagnosis with particular emphasis on connector(s) or wiring harness in the CAN bus lines between the steering wheel sensor and the TCL/ASC-ECU, and the power supply system to the steering wheel sensor. For diagnosis procedures, refer to "How to cope with past trouble" (Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS ).
NOTE: For a past trouble, you may not find it by the M.U.T.-III CAN bus diagnostics even if there is any failure in CAN bus lines. In this case, refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS . and check the CAN bus lines. You can narrow down the possible cause of the trouble by referring to the DTC, which is set regarding the CAN communication-linked ECUs (Refer to EXPLANATION ABOUT THE SCAN TOOL (M.U.T.-III) CAN BUS DIAGNOSTICS ).